Your artificial eye will need to be replaced, but how often depends upon a number of factors:

First of all, most sockets change shape over time; and the degree of change varies with the individual. A growing child's prosthesis will need replacement more often than
an adult's; weight gain or loss may speed up the rate of socket change. The nature of the original injury or condition that caused the loss of the eye is yet another factor.

Also, the wearer's environment affects the longevity of an artificial eye. Working in an especially dirty environment or exposure to chemical fumes may damage your prosthesis,
making it necessary to replace it more often.

Generally speaking, without unusually rapid socket change, most prostheses last three to five years.